<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		<script>
			
			// 1. 数值型 number
			console.log(100);
			console.log(077);
			console.log(0xff);
			console.log(3.1415926);
			console.log(typeof 100)
			console.log(typeof 3.1415926);
			
			console.log(1/0);
			console.log(0/0);
			
			// 2. 字符串类型
			console.log("abc");
			console.log('abc');
			console.log('张三');
			console.log('高三1班');
			console.log(typeof "abc");
			
			// 转义字符
			// \t 制表符
			// \n 换行
			// \r 回车
			console.log("\"");
			console.log("\\");
			
			// 3. 布尔类型 boolean
			// ture false
			console.log(5>3);
			console.log(5<3);
			console.log(typeof (5>3));
			
			
			
		</script>
	</body>
</html>
